氨基醇取代吡啶酰胺锌(Ⅱ)配合物的合成与光谱表征  

Synthesis and spectral analysis of Zn( Ⅱ) complexes of pyridine amides substituted with amino alcohols

作　　者：罗世霞[1] 陈晓靓[2] 朱淮武[1] 张笑一[1] 卫钢 

机构地区：[1]贵州师范大学化学与材料科学学院,贵州贵阳550001 [2]贵阳护理职业学院,贵州贵阳550081 [3]CSIRO Materials Science and Engineering

出　　处：《贵州师范大学学报（自然科学版）》2014年第3期84-88,92,共6页Journal of Guizhou Normal University：Natural Sciences

基　　金：教育部春晖计划合作科研项目(Z2011040)资助

摘　　要：合成了4种氨基醇取代吡啶酰胺分子吡啶-2,6-二[N-(1'-羟乙基)甲酰胺]、吡啶-2,6-二[N-(2'-羟丙基)甲酰胺]、吡啶-2,6-二[N-(1'-甲基-2'-羟乙基)甲酰胺]、吡啶-2,6-二[N-(1',1'-二甲基-2'-羟基)甲酰胺]的锌(Ⅱ)配合物,通过元素分析方法确定了配合物的化学组成,比较分析了配位前后游离配体与配合物的红外和紫外吸收光谱,并采用紫外光谱滴定法对配体与Zn(Ⅱ)离子在溶液中的配位行为进行了模拟研究。结果显示4种锌(Ⅱ)配合物的配位模式相同,均为1∶1型(ML),其中酰胺键的N原子和吡啶环的N原子作为配位原子参与金属离子Zn(Ⅱ)配位成键。Four pyridine-2,6-diamides incorporating amino alcohols ligands of 2,6-Bis[N-（ 1 ＇-hydroxyethyl） carbamoyl]pyridine,2,6-Bis[N-（ 2＇-hydroxypropyl） carbamoyl]pyridine,2,6-Bis[N-（ 1＇-methyl-2＇-hydroxyethyl） carbamoyl]pyridine,2,6-Bis[N-（ 1＇,1＇-dimethyl-2＇-hydroxy） carbamoyl]pyridine and their zinc（ Ⅱ） complexes had been synthesized and characterized by using FTIR,UV and elemental analysis,and the complex formulae were determined. The IRUV spectral properties of the free ligands and their zinc（ Ⅱ） complex had been discussed and comparised with the results of simulation modeling method. Additionally,the aggregation behavior of zinc salts and pyridine-2,6-diamides ligands in solutions were also investigated with UV spectra. The spectral analysis results shows that in four zinc（ Ⅱ） complexes,the coordination modes of their ligands are similar,and coordinating through two nitrogen atoms of amide and one nitrogen atom of aromatic pyridine-ring,all of them display apparently 1∶ 1（ M /L） binding.

关 键 词：氨基醇 吡啶酰胺 锌(Ⅱ)配合物 光谱分析 

分 类 号：O641.4[理学—物理化学]